NumberResearchRecent thousands-block assignments
6 blocks assigned in June 2026 · from the daily NANPA thousands-block report, 09/20/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
Most active assignees, June 2026 — NPA 409
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-06-12 | 409-318-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | GALVESTON | TX |
| 2026-06-11 | 409-329-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | MAURICEVL | TX |
| 2026-06-11 | 409-566-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | PORTARTHUR | TX |
| 2026-06-02 | 409-369-3XXX | 3000–3999 | Assigned | HD CARRIER LLC | 321J | PORTARTHUR | TX |
| 2026-06-02 | 409-369-8XXX | 8000–8999 | Assigned | HD CARRIER LLC | 321J | PORTARTHUR | TX |
| 2026-06-02 | 409-369-9XXX | 9000–9999 | Assigned | HD CARRIER LLC | 321J | PORTARTHUR | TX |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.